Science bros will tell you with a straight face that they've studying all kinds of remains of the thing on the left, but the medieval folks were just making up silly nonsense with the thing on the right.
This is not Catholic teaching.
Who is and isn't legally allowed to reside in a country is reserved to the state.
Human dignity isn't violated when they've overstayed their visa by 15 years. They chose it.
Giving them perpetual residency isn't a moral requirement of Catholics.
It’s crazy that we can genetically modify plants to glow different colors and yet no one has replaced street lamps with glowing trees or made the Two Trees of Valinor in real life.